Earth boring and drilling machine



No Model.)

.W. E. E'VE-RITT.\

EARTH BORING AND DRILLING MACHINE. No. 547,6 1. Patented 001;. 8, 189 5.Fig.1 2 2? Fig.2

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I aw Attorney.

' To all whom it 72mg concern.-

NITED STATES PATENT OFFICE.

WALTER E. FVERITT, OF BUFFALO, NEW YORK.

EARTH BORING A ND DRlLLlNG MACHlNE.

SPECIFICATION forming part of Letters Patent No. 547,601, dated October8, 18 95. v

Application filed August 2,1894.

Be it known that l, WALTER E. Evnmrna citizen of the United'Statcs,residing in Buf falo, in the county of Erie and State of New York, haveinvented certain new and useful Improvements in Earth Boring andDrilling Machines. of which thefollowing is a specification.

My invention relates to an improved machine for boringlongdistauces intothe earth at any desired angle, or under a street-pavement, or for otherpurposes for which it may be adapted, and it will be fully and clearlyhereinafter described and claimed, reference being had to theaccompanying drawings, in which- Figure 1 is a side elevation of themachine complete, a vertical longitudinalsection being cut through thebase in or about line aa, Fig. 4. Fig. 2 is a detached front elevationof the ratchet-gear and removable arm and ratchet-pawl for operating it.Fig. 3 is a top plan view of the machine complete, showing the upperhalf of the screw-bar supportingbox open. Fig.4 is a vertical transversesec tion in or about line 17b, Fig. 1, cutting through the base andshowing a front elevation of the rear vertical supporting frame-piece.Fig. 5 is a detached front elevation of the intermittingly-operatinggear. Fig. 6 is an enlarged rear end view of one of the anger-bars, allparts beyond the socket being omitted, showing the open end ofthe barand substantially its form. Fig. 7 represents a,vertical crossscctionthrough the base of the machinein or, about line 0 c, Fig. 1, showinga'front eleva-. tion of the forward vertical supporting framepiece, thegearing and other'parts being omitted. Fig. 8 is a side elevation, ofone of the auger-bars, showing a portion of another -bar connectedthereto.

Referring to said drawings in detail, 1 rep: resents the base of themachine. It is .preferably constructed-0f iron and is provided witharaised portion extending lengthwise at each side 2 and 2.

half-round iron 6, secured with its fiat face On the top of. the' raisedportions 2 and 2 is secured bybol'tsfi a flat strip 4, thereby leaving agroove 5 in,

SerialNo. 519353. (No model.)

' down on the base by bolts or other wellknown means, the use of whichwill appear farther on.

Theupright-frame pieces Tand S are preferably made of wrought-iron, butany wellknown suitable material may be used. The

rear frame 7 is provided with two elongated openings 9 and 10 and withtwo laterallyprojecting foot-pieces 11, which project into the slideways5 to support it in a vertical position and allow it to slide freelytherein.

Near the base of the frame-piece 7 is pivoted a roller 12, which restson the top of the half-round bar 6 and travels back and forth with theframe piece 7. The vertical front frame-piece 8 is also provided withlaterallyextendingfeet 11, adapted to move in the slideways 5, and witha pivoted roller 12, resting and partly supporting the frame on thehalf-round bar 6. Both rollers areeach pivoted by a bolt 13,.orr whichthey turn easily. The object of the half-round bar 6 or raised portion'is toprovide an elevated narrow portion for the wheels 12 to travel on,and thereby avoid'the dirt or gravel which may get upon the platform.

The two framepieces 7 and S are connected I upper end and an enlargedhead 22 (shown by dotted lines) at its lower end and secured in place tothe box 15 by a plate 23, (see Fig. f7,).sfo ,tha.t whileit is free toturn it cannot draw away from the box. This construction enablestheoperator to raise or lower all of the ,boxesi15, 16, and17 at the sametime by turning the hand-wheel 21. The screw-bar 2% is mountedin the box17 in the frame 8,

and its-rearend passes through the hole 10 in the frame 7. Thescrew-threaded portion 24 of the bar 2a extends from the point 25 to thecollar 26. At or near the forward end of; the base 1 is rigidly securedan .upright supporting-piece 26", in the upper end of which is mounted asleeve formed in two halves 27 and 27 and adapted to have a slightlongitudinal movement thereon, and is The interior of the sleeve 27 27held with a yielding force by a rubberspring orcushion, also made in twohalves 28 and 28. The upper half of the sleeve and its rubber half piece28 is mounted in a cover 28, pivoted to the top of the supporting-piece26 by a pin 29, and is kept from falling out of said cover 28 by thesmall flat pieces 29, which allow it to move longitudinally in saidcover. '(See Fig. 3) When closed, the cover 28 is kept closed by athumb-screw 30. (See Fig. 1.) is provided with a screw thread 31,adapted to fit the screw-thread 24". Near the rear end of the screw-bar24 is rigidly secured a collar 32, and between the collar ber spring orcushion .33.

On the screw-bar 24 is rigidly secured a gear-wheel 34, and above thescrew-bar is mounted in the box 16 of the frame 8 and'in the opening, 9of the frame 7 a shaft 35, on which is a feather 35", and on this shaft35 is mounted a gear-wheel 36, adapted to gear in with the wheel 34. Atthe rear of the gearwheel 36, and rigidly secured to or formed in onepiece with it, is a mutilated gear-wheel 37.

, A stud 38 is secured to or forms a part of the box 15. On the'stud3Sisloosely mounted a pinion 40, adapted to gear in witha gearwheel 41,mounted on the front end of the shaft 35, and to the pinion 40 isrigidly secured a crank and handle 42, by which the machine is operated.

To the top of the rear frame '7is pivoted by apin 43 the handle 44 of ahammer 45, having a forwardly-projecting bracket carrying afriction-roller 46. (See Fig. 1.

At the end of the shaft 35 is rigidly secured by a set-screw 35 (thatcan be easily loosened when, required) a propeller-shaped double cam,the inclined sides of the blades 48 of which, as they pass thefriction-roller 46 during' their rotation, impart a reciprocatingswinging motion to the hammer 45, which strikes the end 48 of thescrew-bar 24, so as to drive the drill forward by a blow from the hammerwhen drilling through rock.

In Fig. 8 I have shown one'of the augerbars (the one having the drill atthe end) as attached to a portion of one of the intermediate bars. Theintermediate bars are each provided with a socket 49 atits rearend and areduced slightly tapering projection or tongue 50 at its forward endadapted to fitin the socket 49 and is rigidly secured by apin orscrew-bolt 51. The socket 49 50 are made as fiat as possibleconsistent-with the required strength, so as to interfere as little aspossible with the'eonti screw form of the auger-bar.

The sockets 49, cut in the ends of the augerbars, conform to the spiralform of the angerbar, and as the tongues are made in substantially thesame spiral form the insertion of thetongues intothe' sockets is done bygiving the auger-bar having the socketediend a partial turn and thensecuring the two augerbars together with the pin or screw-bolt 51.

32 and the box'17 is a rub-' tnittcd to the gear-wheels 4t and 41, andfrom an dton guenuity of the' From this curved form of the sockets andtongues the anger-bars are securely locked to each other during therotating of the said auger-bars in the direction used while hering. Whenthe direction of the revolution can easily be separated by removing thepin or screw-bolt 51 and withdrawing the tongue from the socket.

If desired, the intermediate auger-bars may be plain tubes of ordinarygas-pipe; but for many uscs'the form shown in Fig. 6 answers a'goodpurpose.

The operation 'ofthe machine is as follows: By turning the crank 42 itsmotion is transthe gear-wheels 36 or 37 motion is given to thegear-wheel 34 and from that to the screwbar 24, thereby operating thedrill. The screw-bar being in gear with the screw-thread edybox orsleeve 27 27 causes the drill to move forward and draw the carriage orsupportingframe and its several parts along at the same time. \Vhen thefull length of the auger-bar or nearly its full-length has advanced intothe earth, the pin or thumbscrew 30 is removed, the upper portion27,of'the screw-sleeve is opened, the hand-wheel 21 is then turned, soas to lift the screw-bar above the screw-threaded portion 31sufficiently to allow the'supporting-framc to be pushed back far enoughto allow another length of auger-. bar to be put on. The operation isthen repeated. During the above operation the setscrew 35 has beenloosened to allow the shaft 35 toturn freely without turning the cam.The hammer, therefore, does not operate in this instance; but whendrilling through rock or shale it is sometimes desirable to use thehammer, which is done bytightening the setscrew 35, and thereby bringingthe cam into action. \Vhen boring through soft earth, the wheel 36 maybe brought into gear with the wheel 34 byloosening the set-screw.'-t7and moving'it suflicie'ntly to'one side to bring its teeth in gear withthe teeth insaid wheel and then tightening the set-screw 47. When therock is .too hardfor the's'peed of the augeubar, the set-screw 47 isloosened and the gears 36 and 37 are moved along the shaft 35 until themutilated gear 87 comes into gear with the wheel 34. The set-screw 47is' then tightened. The screw-bar is then only moved intermittingly, thedevice being timed so -that the blow of the hammer is struck during eachintermission. In Fig. 1 I have-illustrated this. position of thegear-wheels, showing the teeth of the gear-wheel 34 in engagement withone of the series of teeth on the mutilated gear-wheel 37 and adapted toturn gear-wheels bring .oue of the non-teeth-bearing faces of themutilated gear into the posi-' tion substantially as shown in Fig. 5,when the screw-bar 27 ceasesto turn and will not again revolve until thenext series of teeth on the mutilated gear are brought into en thescrew-bar 24 until the revolution of the of the screw-bar is'reversed,the auger-bars the twof'portiohso f the, sleeve, the upper por-.

gagement with the gear-w eel 34. This operation is repeated during'threvolution of the screw-bar 2r while the gears34 and 37 are inengagement, thus; giving an intermittent movement to the sc1'cw-bar."Thebase 1 is pivoted to a fratne'52 (see Fig. 1) and is made adjustable bymeans of screws 53. The object of this construction is to provide themeans for ad'justingjtheboringstool to any an gle it may be'desired tobore into the earth. The force of, the blow from the hammer may beincreased by means of a spring54.

Tln Fig. 2 I have shown ,a front view of the gear-wheel 41. The shaft35, on which the gear-wheel 41 is secured, projects out far enough toreceive anarrn or lever 55, having a pawl 56 loosely pivoted thereto.The lever is rmovably secured'to the-shaft 35 by means ofja pin 57.. Theobject of this construction is that when from the nature of the.earth'or rock more power is'required to operate the machine the handle42 is "removed and the arm 55 is put on, substantially as shownin Fig.2, and used,-whioh construction gives the operator a lohger lever towork with.

' I claiinas m invention- 21.. In an earth boring; machine,thecombination with the screw bahthe pivoted hammer, and its operating mejchanisrii' of two rub} ber cushions, one secured between the collarand box located i' ear the rear end of'the screw bar and theother madein two halves with tion of which is mounted in a cover pivoted to thet'opo'f the iupright supporting piece,

. substantially as described.

2; In an earth boring machine, the combinatron ofhammer,pivotallysecured to the frame,'a double cam for operating saidhammer-,.a'combined-gear wheel and mutilated gear wheel; securedtogether so. as to. be adjusted simultaneously, and mounted on ashaft,-means f or preventing them from turning said shaft, and means forbringing and, securing one or the other gear intogear with awheel-mou'nted'on the screw bar, forope'r atlng the said'screw bareither intermittently or continuously, substantially as, described."

3. loan earth boring machine, the combination of the hammer 45,pivotally secured to the f rja me, propellershaped cam for actuat ng thehammer, a combined gear wheel and. mut lated gear= wheel securedtogether so as to be adjusted simultaneously, andmounted on a sha'ft35,means-for preventing them from turning or said shaft, -and means for'bring 'l ing and securing one or the othergea'r into gear withthe'wheel 34, for operating the screw.

bar either intermittently orcontinuously,substantial'ly as described. h

4. In an earth boring machine, the combination with the platform, oftwo'parallel upright frame pieces, one'of said frame pieces beingprovided with elongated openings orfslots,

and the'other with adjustable boxes, adapted to support the rear end ofthe screw bar, a standard, a' box composed of two portions 27 and27*,for securing the forward endof the said boxes together'and a screwthreaded portion secured at its'lower end to the upper box so as to becapable of revolving back and forth, and ahand wheel on its upper endfor turning the same, whereby when the cover 27, is opened the boxes inwhich the gear wheel shafts and screw bar are mounted may be raisednpwardand the screw bar'rcleased from the screw sleeve 27, so that thecarriages may he moved back in position to add another length of angerbar,subst antially as described. 5. In an earth boring machine, thecombination with the,platform of two upright frame pieces, slots cut inone of said frame pieces, and boxes mounted in the other,- and the rearend of' the screw bar mounted insaid slots andboxes, a standard, a boxcomposed of two hinged portions for securing the forward end ofthe-"screw bar, means for fastening said box portionsttogether anddevices for'raising the-screw bar and its operating mechanismupwardian'd'releasing the said screw bar from the. screw ;sleeve', whenthe hinged box is open; asset forth. i 4 6.'Iri an;earthboring machine,the combina- I tioniiof' a vhammer pivotally secured tothe frame-ta"combined gear wheel and mutilated "ajshaft, means for preventing themfrom'turngear wheel or the-mutilated gear wheel into engagement with agear wheel mounted'on theiscre'w b'ar, for operating the screw bareither-intermittently or continuously and devices for operating thehammer,flwhile the screw bar isrevolving intermittently as and forthepurposes'described.

7 m an earth borin'g machine, the combinati'onlwith the frameand theupright frame piecesthereof, of a hammer pivoted to one of said; framepieces, a, shaft, a. double cam mounted on said shaft for operating saidhammer, afcombin'ed gear wheel and mutilated gear wheel, also mounted onthe said shaft, means; for. rotating the shaft, and means wherebye-i-ther the gearvwheel 'or the mutis latedgear wheel can be broughtinto contact and thus-allow the screw bar toremain quiet inthe'intervals between'the said strokes while-the fh'ammerjis operating,or rotate con-v v. WALTER EVERITT. Witnesses: 3 JAMES SANGSTER,

l ARTHUR J SANGSTER.

screw bar, and the shafts upon which the gear wheels are mounted, meansfor connecting ingon said shaft, means for bringingthe said during thestrokes of'the hammer and rotate 7 gear wheel secured together andmounted on withfagear wheel mounted on the screw bar,

,tinuouslywhile the hammerjs passive, sub: staintiallv as described.

